import {z} from 'zod'

export type Reason = 'UNKNOWN' | 'MOST_LIQUID' | 'BASE_TOKEN' | 'DIRECT';

export type SwapVenue = {chain_id?: string | undefined, name?: string | undefined, logo_uri?: (string | null) | undefined};

export type AssetsFromSourceRequest = {source_asset_denom: string, source_asset_chain_id: string, allow_multi_tx?: boolean | undefined, recommendation_reason?: Reason | undefined, include_swaps?: boolean | undefined, swap_venues?: (Array<SwapVenue> | null) | undefined, native_only?: boolean | undefined, group_by?: (string | null) | undefined, include_cw20_assets?: boolean | undefined};

export type CreateApiV2FungibleAssetsFromSourceArgs = {body: AssetsFromSourceRequest};

export type CreateApiV2FungibleAssetsFromSourceOptions = {baseUrl?: string | undefined, fetch?: typeof fetch | undefined};

export const asset = z.object({denom: z.string(), chain_id: z.string(), origin_denom: z.string(), origin_chain_id: z.string(), trace: z.string(), is_cw20: z.boolean(), is_evm: z.boolean(), is_svm: z.boolean(), symbol: z.string().nullable().optional(), name: z.string().nullable().optional(), logo_uri: z.string().nullable().optional(), decimals: z.number().nullable().optional(), token_contract: z.string().nullable().optional(), description: z.string().nullable().optional(), coingecko_id: z.string().nullable().optional(), recommended_symbol: z.string().nullable().optional()});

export const createApiV2FungibleAssetsFromSourceResponse = z.object({dest_assets: z.record(z.string(), z.object({assets: z.array(asset).optional()})).optional()});

export const validateResponse = async <Output>(
  schema: {
    readonly '~standard': {
      readonly validate: (value: unknown) => ({ readonly value: Output; readonly issues?: undefined } | { readonly issues: ReadonlyArray<{ readonly message: string; readonly path?: ReadonlyArray<PropertyKey | { readonly key: PropertyKey }> | undefined }> }) | Promise<{ readonly value: Output; readonly issues?: undefined } | { readonly issues: ReadonlyArray<{ readonly message: string; readonly path?: ReadonlyArray<PropertyKey | { readonly key: PropertyKey }> | undefined }> }>
    }
  },
  value: unknown
): Promise<Output> => {
  const result = await schema['~standard'].validate(value)

  if (result.issues !== undefined) {
    const detail = result.issues
      .map(({ message, path }) =>
        path?.length
          ? `${path.map((segment) => String(typeof segment === 'object' ? segment.key : segment)).join('.')}: ${message}`
          : message
      )
      .join('; ')

    throw new Error(`Response does not match the schema: ${detail}`, { cause: { issues: result.issues } })
  }

  return result.value
};

/**
 * Get assets that can be reached from a source via transfers under different conditions (e.g. single vs multiple txs)
 * 
 * POST /v2/fungible/assets_from_source
 */
export const createApiV2FungibleAssetsFromSource = async (args: CreateApiV2FungibleAssetsFromSourceArgs, options?: CreateApiV2FungibleAssetsFromSourceOptions) => {
const {baseUrl = "https://api.skip.build", fetch: fetchFn = fetch} = options ?? {}

const query = new URLSearchParams()
const headers = new Headers()
headers.set('content-type', "application/json")
headers.set('accept', "application/json")

const url = `${baseUrl.replace(/\/+$/, '')}/v2/fungible/assets_from_source${query.size > 0 ? `?${query}` : ''}`

const res = await fetchFn(url, {method: "POST", headers, body: JSON.stringify(args.body)})

if (!res.ok) throw new Error(`Request failed with status ${res.status}`, {cause: {status: res.status, body: await res.text()}})

return validateResponse(createApiV2FungibleAssetsFromSourceResponse, await res.json())
};